Dr. John, who recently won the Grammy for best blues album for last year’s “Locked Down,” will perform an 8 p.m. show April 18. Aaron Neville is also on the bill. Tickets are $65 to $75 and available at the box office (1721 W. Canal St.), by calling (800) 745-3000 and visiting ticketmaster.com.

Poison frontman Bret Michaels will headline two shows at 8 p.m. May 30 and 31; tickets are $25 to $50 and go on sale beginning at noon April 5.

Poison fans might also be interested in two shows with Scrap Metal, a rock “supergroup” featuring late '80s and early '90s stars Kelly Keagy (Night Ranger), Mark Slaughter (Slaughter), Eric Martin (Mr. Big) and Matthew and Gunnar Nelson (Nelson). Ticket prices for the 8 p.m. shows April 25 and 26 have yet to be announced; tickets go on sale March 8.

Other shows announced Friday coming to Northern Lights include Madeline Peyroux (8 p.m. April 4, $25 to $35, on sale noon Feb. 28); The Flatlanders (8 p.m. April 5, $35 to $45, on sale noon Feb. 25); and Ottmar Liebert and Luna Negra (8 p.m. June 21, ticket prices to be announced, on sale April 1).

And two sets of shows at Northern Lights this spring—the Doobie Brothers April 1 and 2, and Chicago April 30 and May 1—are now sold out.